<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <style>
        article {
            padding: 30px;
            width: 400px;
            border: solid 3px #ddd;
        }

        div {
            width: 100px;
            height: 100px;
            background: red;
            margin-bottom: 10px;
        }

        div:nth-of-type(1) {
            /* display: none; */
            /* visibility: hidden; */
            opacity: 0;
        }
    </style>
</head>

<body>
    <article>
        <div>1</div>
        <div>2</div>
    </article>
</body>

</html>